O Level

Chemistry MCQ Questions

O Level Chemistry MCQs - Chapter

Methods of purification MCQ with Answers p. 6

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Methods of purification MCQ with answers PDF, methods of purification quiz worksheets with answers key, O level chemistry worksheet 6 for online courses. Learn pure substances and mixtures Multiple Choice Questions (MCQs), Methods of purification quiz with answers for admission and merit scholarships test. Learn pure substances and mixtures, simple and fractional distillation, paper chromatography career test for accredited online college courses.

"Elevation of boiling points occur due to" Multiple Choice Questions (MCQ) on methods of purification with choices reduced pressure, presence of impurities, high pressure, and lower rate of evaporation for ACT practice test. Practice pure substances and mixtures quiz questions for jobs' assessment test and online courses for ACT subject test tutoring.

MCQs on Methods of purification

1.

Elevation of boiling points occur due to

presence of impurities
reduced pressure
high pressure
lower rate of evaporation

2.

Range of −5 oC to −25 oC is of

depression of freezing point of ice
latent heat of freezing
melting salted ice
melting pure ice

3.

The distillate is a liquid that

mixes together
condenses after distillation
does not sink due to very fine particles
a substance that will not dissolve

4.

Presence of impurities in ethanol (C2H5OH) will

lower the boiling point
raise the boiling point
lower the rate of evaporation
none of above

5.

A purple stain is obtained if the Ninhydrin spray is used to locate

peptones
protean
protein
amino acids

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